Three children injured in Sydney crash

Three small children have been hospitalised after a car driven by their mother crashed and wrapped itself around a guard rail on a road in Sydney's northwest.

The three children, aged one, three and five, were in the car with their mother when the car crashed into the rail at the intersection of Pennant Hills and Eaton roads, West Pennant Hills, at 2.20am (AEDT) on Tuesday.

The car was cut from the guard rail, and left the three children with various injuries, including a fractured arm and facial injuries.